How many pixels is a 35x45 mm passport photo at 300 DPI?

At 300 DPI, a 35×45 mm photograph measures exactly 413 pixels wide by 531 pixels high.

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35×45 mm Passport & ID Photo Guide: Exact Pixels (413×531 px) & KB Size

Reviewed by CompressPhoto Biometric & Imaging Lab • Updated & Verified: November 2026 • Standard Format: 413 × 531 px (35 × 45 mm (3.5 × 4.5 cm)) — Target: ≤ 50.0 KB

The 35 × 45 millimeter (3.5 × 4.5 cm) portrait is the official ICAO / ISO/IEC 19794-5 biometric standard used across the European Union (Schengen Visa), France (ANTS Passeport / CNI), Morocco (CNIE), the UK, Australia, and over 120 countries.

Exact Conversion: 35 × 45 mm = 413 × 531 Pixels at 300 DPI

Digital portals require millimeter dimensions converted into pixels at 300 Dots Per Inch (DPI). Using the formula (mm ÷ 25.4) × 300, 35 mm equals 413 pixels wide and 45 mm equals 531 pixels high.

Aspect Ratio: 7:9 vertical portrait crop with centered head and shoulders.
Background Rules: Uniform light gray, passport blue, or pure white without shadows behind the ears.
File Size Ceiling: Typically ≤ 50 KB to 100 KB in sRGB JPEG format.

Frequently Asked Questions

How many pixels is a 35x45 mm passport photo at 300 DPI?: At 300 DPI, a 35×45 mm photograph measures exactly 413 pixels wide by 531 pixels high.